System-Bluetooth name/WiFi AP name/sleep add never/Notification popup
最后更新于：2022-04-01 14:48:29
今天拿到一个客户新的订单需求，大概有40多个需求，今天先讲更改系统的蓝牙/wifi 热点/消息通知/sleep 添加 never选项，分别是：
蓝牙：连接显示名、系统界面显示名字，重命名前的默认名字
wifi 热点：连接名字，重命名前默认 Network name
Notification popup ：系统 Notification popup 默认不勾选
休眠添加never选项，默认30s：添加永不休眠，默认30s
首先我们要知道系统默认的蓝牙名字 ANDROID BT
Linux input ...> find 你的源码根目录/ -type f|xargs grep "ANDROID BT" -l
这句命令是找出源码下所有带有字符串 ANDROID BT 所在的文件，搜索无果，直接进入源码
packages\apps\Settings\src\com\android\settings\bluetooth\BluetoothSettins.java
跟踪源码找到如下代码
~~~
@Override
public void onResume() {
......
if (mLocalAdapter != null) {
updateContent(mLocalAdapter.getBluetoothState());
}
}
~~~
跟踪updateContent函数，修改如下代码
~~~
if (mMyDevicePreference == null) {
mMyDevicePreference = new Preference(getActivity());
}
// Engineer-Jsp add default bluetooth name
if (android.os.SystemProperties.isWalPadVersion()) {
mMyDevicePreference.setSummary(getResources().getString(
R.string.bluetooth_is_visible_message, "Walpad C"));
}else{
mMyDevicePreference.setSummary(getResources().getString(
R.string.bluetooth_is_visible_message, mLocalAdapter.getName()));
}
mMyDevicePreference.setSelectable(false);
~~~
其中 isWalpadVersion 函数是我在frameworks/base/core/java/android/os/SystemProperties.java中定义的
~~~
public static boolean isWalPadVersion(){
return SystemProperties.get("ro.product.model").contains("Walpad");
}
~~~
根据编译文件设置的客户平板型号定制产品而定，这样写有人可能会觉得多此一举，显的麻烦，但是作为一个系统，能把它做成兼容模式岂不是更好？
因为下次再有系统定制订单需求，我们只需要修改配置文件和分支就够了，轻松方便，而不需要再去new 代码了
setSummary(...,...)函数就是蓝牙设置打开蓝牙之后在界面显示的效果
R.string.bluetooth.is.visible_message 内容：
~~~
<string name="bluetooth_is_visible_message"><xliff:g id="device_name">%1$s</xliff:g> is visible to nearby devices while Bluetooth Settings is open.</string>
~~~
device_name 即为我们替换的名字，即Walpad C,效果图：
接下来修改重名命选项的蓝牙设备名称，onOptionsItemSelected(MenuItem item) 根据 item 追踪重命名的 Dialog 找到如下逻辑：
~~~
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
......
mAlertDialog = new AlertDialog.Builder(getActivity())
.setTitle(R.string.bluetooth_rename_device)
.setView(createDialogView(deviceName))// 继续追踪createDialogView(deviceName)方法
......
return mAlertDialog;
}
~~~
根据逻辑，修改如下：
~~~
private View createDialogView(String deviceName) {
......
// Engineer-Jsp add default bluetooth name
if (android.os.SystemProperties.isWalPadVersion()) {// 根据model显示名称
mDeviceNameView.setText("Walpad C");
}else{
mDeviceNameView.setText(deviceName); // set initial value before adding listener
}
......
return view;
}
~~~
效果图：
连接显示名修改：
~~~
// Engineer-Jsp add default bluetooth name
if (android.os.SystemProperties.isWalPadVersion()) {
mMyDevicePreference.setSummary(getResources().getString(
R.string.bluetooth_is_visible_message, "Walpad C"));
mLocalAdapter.setName("Walpad C");//在之前讲到的修改除再添加此句
}else{
mMyDevicePreference.setSummary(getResources().getString(
R.string.bluetooth_is_visible_message, mLocalAdapter.getName()));
}
~~~
效果：
修改wifi重命名前的名字，根据信息搜索到源码packages\apps\Settings\src\com\android\settings\wifi\WifiApDialog.java
根据逻辑，查找到如下代码：
~~~
@Override
protected void onCreate(Bundle savedInstanceState) {
Context context = getContext();
......
if (mWifiConfig != null) {
// Engineer-Jsp add default bluetooth name
if (android.os.SystemProperties.isWalPadVersion()) { //根据型号显示ssid
mSsid.setText("Walpad C");
}else{
mSsid.setText(mWifiConfig.SSID);
}
/// M: set selection
mSecurity.setSelection(mExt.getSelection(mSecurityTypeIndex));
if (mSecurityTypeIndex == WPA2_INDEX) {
mPassword.setText(mWifiConfig.preSharedKey);
}
///M: get configured channel @{
mChannel = mWifiConfig.channel;
mChannelWidth = mWifiConfig.channelWidth;
/// @}
}
......
}
~~~
效果：
连接名字：
修改系统 Notification popup 默认不勾选
搜索关键字：源码目录...>find ./ -name ".xml" | xargs grep "Popup notification"
找到xml文件之后找到对应string name 名称，发现他被一个布局文件调用，packages\apps\Mms\res\xml\notificationpreferences.xml - pref_summary_popup_notification -
defaultValue="false" 把这个默认false，即可
效果：
修改休眠选项默认 30s 添加永不休眠选项：
默认休眠30s修改：frameworks\base\packages\SettingsProvider\res\values\defaults.xml
~~~
<integer name="def_screen_off_timeout">30000</integer>
~~~
添加永不休眠选项：
~~~
private static final boolean sNeedScreenTimeoutNever = true;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
......
if (sNeedScreenTimeoutNever && mScreenTimeoutPreference != null) { //rmt add
Resources res = getResources();
final String[] entries = res.getStringArray(R.array.screen_timeout_entries);
final String[] values = res.getStringArray(R.array.screen_timeout_values);
int entriesLength = entries.length;
final String[] newEntries = new String[entriesLength + 1];
for (int i = 0; i < entriesLength + 1; i++) {
if (i != entriesLength) {
newEntries[i] = entries[i];
} else {
newEntries[i] = res.getString(R.string.zen_mode_when_never);
}
}
int valuesLength = values.length;
final String[] newValues = new String[valuesLength + 1];
for (int i = 0; i < valuesLength + 1; i++) {
if (i != valuesLength) {
newValues[i] = values[i];
} else {
newValues[i] = "2147483647";
}
}
mScreenTimeoutPreference.setEntries(newEntries);
mScreenTimeoutPreference.setEntryValues(newValues);
......
}
private void updateTimeoutPreferenceDescription(long currentTimeout) {
......
} else if(currentTimeout == Integer.MAX_VALUE) { //Engineer-Jsp add
summary = preference.getContext().getString(R.string.zen_mode_when_never);
}
.......
}
~~~
效果：
